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  1. #1

    Default Tecumseh HH120 rebuild

    Im in the process of rebuilding my old Tecumseh HH120 in my Super 12. This is a question for all you Vintage Sears Restorationists. Does anyone know the correct torquing of the bolts on the connecting rod? Inch lbs/ft lbs? If so how much? Thanks.

  2. #2
    Veteran Member jwstewar's Avatar
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    Default Re: Tecumseh HH120 rebuild

    From the Tecumseh manual that I found online:

    Torque to correct specifications 110-inch pounds (12.43Nm). After initial torque use a drift and a hammer(13 oz.) (390 ml) and strike the rod bearing cap aboveeach lock nut. This will seat the cap releasing sometorque on the lock nuts. Retorque lock nuts to
    specifications.
    Jim
    New Holland TC24D

  3. #3

    Default Re: Tecumseh HH120 rebuild

    do you remember which site you found the manual on? thanks

  4. #4
    Veteran Member jwstewar's Avatar
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    Default Re: Tecumseh HH120 rebuild

    Don't know if this is where I found it from, but this is the same version I have. Tecumseh Manual
    Jim
    New Holland TC24D

  5. #5
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    Default Re: Tecumseh HH120 rebuild

    Holy Toledo: Would you believe that I just started work on Sears Suburban 10 with a Tecumseh HH120 today(9/20/2012) and ran across this Thread. I bought it a few months back at a farm consignment auction up in Monroe, Mi, just north of Toledo. I plan to use it with a self propelled sears rototiller attached as a primary weed row tiller next summer in my 2-3 acre garden. Of course no telling how long it sat and I oiled up the cylinder to help the recoil starter. It was stiff to begin with but had loosened up nicely. I tried to start it but found no spark. So I took off the flywheel cover to see how rusted the magnito and flywheel were and pf course evacuated the mouse house. I am not familiar with the Tecumseh small engines but I have worked on several Briggs&St. The ignition units are not similar and what appears to be a ?coil or ?cpncesner is badly rusted and I assume needs replacement. the magnet on the flywheel is strong and has surface rust. Question is this: can this be converted to an electronic ignition as I have done with my B&S engines? Or is it best to stay with the original which I found on the Sears Vintage website to be : Points 32011A; condenser 32015 and Coil 32014, and then where do i find these?
    Thank You for your help and Patience.
    DocRocky

  6. #6
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    Default Re: Tecumseh HH120 rebuild

    Docrocky could you post the sears model #? I think they start with a 9 or it might be 142 for the.Tecumseh I have one that needs some parts.

  7. #7
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    Default Re: Tecumseh HH120 rebuild

    Leejohn: Sears Suburban 10HP this from the decals on the hood.

    These numbers are from the engine cowl.
    Model 143-579032
    serial no 6287
    12135
    Attached Thumbnails Attached Thumbnails -img_0026-jpg   -img_0031-jpg   -img_0022-jpg  

  8. #8
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    Default Re: Tecumseh HH120 rebuild

    Hay thinks a lot I have been looking for that a long time. Thanks again, Lee

  9. #9
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    Default Re: Tecumseh HH120 rebuild

    hey , DocRocky , exactly WHAT do I type in to get to that old Sears web-site where you got those part numbers ????

  10. #10
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    Default Re: Tecumseh HH120 rebuild

    DelRebel: sorry, I have spent the past hour trying to backtrack but I don't seem to find the website or source of those numbers. I started out trying to find the condenser for the Tecumseh 143-579032 then I found the ignition coil was bad too. I have spent 2 nights trying to rundown anything for that engine but no luck. I'll keep you inmind if I do stumble onto to source of those numbers.

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